Question 401:

• JAMB 1986

Which of the following is common to evaporation and boiling? They

A. Take place at any temperature
B. Are surface phenomena
C. Involve change of state
D. Take place at a definite pressure

Question 402:

• JAMB 1986

Mercury is suitable as a barometric fluid because it

A. Expands uniformly
B. Is opaque
C. Is several times denser than water
D. Is a good conductor of heat

Question 403:

• JAMB 1986

Which of the following properties makes metals ideal for cooking utensils?

A. High coefficient of expansion
B. Good conduction of heat
C. Low specific heat capacity
D. Poor radiation of heat

Question 404:

• JAMB 1986

A gas occupies a volume of 300cm³at a temperature of 27^oC. What is its volume at 54^oC, when the pressure is constant?

A. 150cm³
B. 273cm³
C. 327cm³
D. 600cm³

Question 405:

• JAMB 1986

When two objects P and Q are supplied with the same quantity of heat, the temperature change in P is observed to be twice that of Q. The ratio of the specific heat capacity of P to Q is

A. 1 : 4
B. 4 : 1
C. 1 : 1
D. 2 : 1