Mastering Specific Heat and Thermodynamics

<p>The time required to reduce the temperature at the slowest cooling point from the ambient temperature to -15 oC.</p> Signup and view all the answers

<p>The process of increasing the concentration of solutes in unfrozen material during freezing.</p> Signup and view all the answers

<p>82112 kJ</p> Signup and view all the answers

<p>ΔH = ΔU - pΔV + pΔV</p> Signup and view all the answers

<p>Heat absorbed or evolved</p> Signup and view all the answers

<p>Heat is evolved and the process is exothermic</p> Signup and view all the answers

<p>Heat content</p> Signup and view all the answers

<p>Insulating the calorimeter</p> Signup and view all the answers

<p>They are equal</p> Signup and view all the answers

<p>Rate of heat loss from a body is directly proportional to the excess temperature of the body above that of its surroundings</p> Signup and view all the answers

<p>There is no relationship</p> Signup and view all the answers

<p>To eliminate heat loss from the liquid</p> Signup and view all the answers

<p>$m'CL\Delta T = VI$</p> Signup and view all the answers

<p>Sublimation</p> Signup and view all the answers

<p>The specific heat capacity of water is greater</p> Signup and view all the answers

<p>To indicate the melting point of water</p> Signup and view all the answers

<p>They are inversely proportional</p> Signup and view all the answers

<p>$Q = mass \times average specific heat \times temp change$</p> Signup and view all the answers

<p>The amount of heat required to raise unit mass by unit temperature rise under constant volume</p> Signup and view all the answers

<p>The amount of heat required to raise unit mass by unit temperature rise at constant pressure</p> Signup and view all the answers

<p>By calculating the sum of the products of the fraction of each component and its specific heat</p> Signup and view all the answers

<p>3700 J/kg. oC</p> Signup and view all the answers

<p>2100 J/kg. oC</p> Signup and view all the answers

<p>2000 J/kg. oC</p> Signup and view all the answers

<p>2110 J/kg. oC</p> Signup and view all the answers

<p>Method of Mixtures</p> Signup and view all the answers

<p>Mass of the specimen, mass of the calorimeter, mass of the fluid, initial temperature of the specimen and fluid, and final temperature of the mixture</p> Signup and view all the answers

<p>Q = mass x average specific heat x temp change</p> Signup and view all the answers

<p>3700 J/kg. oC</p> Signup and view all the answers

<p>2100 J/kg. oC</p> Signup and view all the answers

<p>2000 J/kg. oC</p> Signup and view all the answers

<p>ms, mc, and mf</p> Signup and view all the answers

<p>Method of Mixtures</p> Signup and view all the answers

<p>They are equal</p> Signup and view all the answers

<p>2110 J/kg. oC</p> Signup and view all the answers

<p>4180 J/kg/k</p> Signup and view all the answers

<p>The rate of heat loss is directly proportional to the temperature difference between the object and its surroundings</p> Signup and view all the answers

<p>Method of Cooling</p> Signup and view all the answers

<p>2.0 J/kg/K</p> Signup and view all the answers

<p>540 J/g</p> Signup and view all the answers

<p>Inversely proportional</p> Signup and view all the answers

<p>Directly proportional</p> Signup and view all the answers

<p>4.0 J/kg/K</p> Signup and view all the answers

<p>The rate of heat loss from a body is directly proportional to its temperature</p> Signup and view all the answers

<p>To indicate the melting point of water</p> Signup and view all the answers

<p>m'CLΔT = VI</p> Signup and view all the answers

<p>Sublimation</p> Signup and view all the answers

<p>It is the amount of heat required to change a substance from a liquid to a gas at its boiling point.</p> Signup and view all the answers

<p>3 J/g°C</p> Signup and view all the answers

<p>The specific heat capacity of ice is less than the specific heat capacity of water.</p> Signup and view all the answers

<p>2257 kJ/kg</p> Signup and view all the answers

<p>To indicate the phase change from solid to liquid.</p> Signup and view all the answers

<p>To provide a constant source of heat for the experiment.</p> Signup and view all the answers

<p>The rate of heat loss from a sample is always less than the rate of heat loss from a reference material.</p> Signup and view all the answers

<p>Q = mλ</p> Signup and view all the answers

<p>1 J/g°C</p> Signup and view all the answers

<p>The process of freezing a liquid to concentrate the solutes in the unfrozen material.</p> Signup and view all the answers

<p>It is approximately equal to the specific heat of water</p> Signup and view all the answers

<p>To indicate the melting point of water</p> Signup and view all the answers

<p>They are equal</p> Signup and view all the answers

<p>It is higher than the specific heat of water</p> Signup and view all the answers

<p>Sublimation</p> Signup and view all the answers

<p>The rate of heat loss from a body is directly proportional to the excess temperature of the body above that of its surroundings</p> Signup and view all the answers

<p>It is lower than the specific heat of water</p> Signup and view all the answers

<p>Mass and temperature of both the sample and the reference material</p> Signup and view all the answers

<p>They are inversely proportional</p> Signup and view all the answers

<p>It is not mentioned in the text</p> Signup and view all the answers

<p>Q = mass x average specific heat x temp change</p> Signup and view all the answers

<p>Enthalpy is equal to heat content both above and below the freezing point.</p> Signup and view all the answers

<p>Q = mass x average specific heat x temp change</p> Signup and view all the answers

<p>2257 kJ/kg</p> Signup and view all the answers

<p>3700 J/kg. oC</p> Signup and view all the answers

<p>3.2 kJ/kg·°C</p> Signup and view all the answers

<p>2100 J/kg. oC</p> Signup and view all the answers

<p>3.2 kJ/kg·°C</p> Signup and view all the answers

<p>2000 J/kg. oC</p> Signup and view all the answers

<p>To indicate no change in temperature during the phase change.</p> Signup and view all the answers

<p>Method of Mixtures</p> Signup and view all the answers

<p>To provide heat for the process of freezing.</p> Signup and view all the answers

<p>To provide heat to the fluid</p> Signup and view all the answers

<p>The time required to reduce the temperature of a sample from the ambient temperature to -15°C.</p> Signup and view all the answers

<p>To indicate the melting of the ice</p> Signup and view all the answers

<p>ΔH = ΔU - pΔV + pΔV</p> Signup and view all the answers

<p>A process in which a liquid is cooled below its freezing point</p> Signup and view all the answers

<p>The specific heat capacities of ice and water are equal.</p> Signup and view all the answers

<p>By measuring the temperature change of the individual components</p> Signup and view all the answers

<p>The boiling point of a liquid increases with increasing pressure.</p> Signup and view all the answers