Quiz for Calorimetry

Q1: Which unit is used to measure heat?

A. Kelvin B. Joule C. Celsius D. Newton

Q2: What is the principle of calorimetry based on?

A. Conservation of mass B. Conservation of heat C. Conservation of momentum D. Newton's laws

Q3: Which device is used to measure the heat exchanged?

A. Thermometer B. Calorimeter C. Voltmeter D. Barometer

Q4: Which property does not affect heat gained by a substance?

A. Mass B. Specific heat C. Temperature change D. Density

Q5: In the formula Q = mcΔT, "c" stands for?

A. Calorie B. Specific heat capacity C. Conductivity D. Capacitance

Q6: Water has a high specific heat. What does it imply?

A. Heats up quickly B. Does not heat C. Takes more heat to raise temperature D. Boils at lower temperature

Q7: If heat is lost by hot object, where does it go?

A. Lost to air B. Absorbed by cold object C. Disappears D. Used in work

Q8: What is latent heat?

A. Heat required to raise temp. B. Heat required for phase change C. Heat lost to surroundings D. Heat used in conduction

Q9: Which of these materials has the highest specific heat?

A. Water B. Copper C. Aluminum D. Iron

Q10: When ice melts, which type of heat is involved?

A. Sensible heat B. Latent heat of fusion C. Latent heat of vaporization D. No heat

Q11: Which phase has no temperature change despite heat absorption?

A. Solid B. Liquid C. Gas D. During phase change

Q12: Heat gained by a body is negative when?

A. It is heated B. It is cooled C. It is compressed D. It expands

Q13: Which of the following has the lowest specific heat?

A. Lead B. Water C. Ice D. Aluminum

Q14: What happens if the calorimeter is not insulated?

A. No effect B. Heat gain increases C. Heat loss occurs D. Only cold object gains

Q15: What is the SI unit of specific heat?

A. J/kg°C B. J/Kg C. C/kg°C D. Joule

Q16: Which equation calculates heat change?

A. Q = mc B. Q = mcΔT C. Q = mgh D. Q = mv²

Q17: Calorimetry assumes system is?

A. Isolated B. Open C. Closed D. Adiabatic

Q18: Temperature at thermal equilibrium is?

A. Average of initial temps B. Closer to hot object C. Same for all D. Depends on mass

Q19: Why is copper used in calorimeters?

A. High density B. High conductivity C. Low weight D. Low cost

Q20: What is calorimetry mainly used for?

A. Measuring pressure B. Measuring heat changes C. Measuring temperature D. Measuring work