21. Calorimeter is used to measure:
A) Temperature
B) Heat
C) Pressure
D) Volume
Answer: B
22. Heat capacity is:
A) Heat per mole
B) Heat per temperature change
C) Temperature per heat
D) Volume per heat
Answer: B
23. Specific heat capacity is:
A) Heat per gram per °C
B) Heat per mole
C) Heat per volume
D) Heat per pressure
Answer: A
24. Water has high specific heat because of:
A) Weak bonds
B) Hydrogen bonding
C) Ionic bonding
D) Metallic bonding
Answer: B
25. Heat absorbed is positive in:
A) Exothermic
B) Endothermic
C) Neutral
D) None
Answer: B
26. Heat released is negative in:
A) Endothermic
B) Exothermic
C) Neutral
D) None
Answer: B
27. First law of thermodynamics states:
A) Energy can be created
B) Energy is conserved
C) Mass is destroyed
D) Heat is zero
Answer: B
28. ΔE = q + w represents:
A) Second law
B) First law
C) Boyle’s law
D) Charles law
Answer: B
29. Work done by system is:
A) Positive
B) Negative
C) Zero
D) Infinite
Answer: B
30. Work done on system is:
A) Negative
B) Positive
C) Zero
D) Undefined
Answer: B