Question 356:

• JAMB 1985

In a gas experiment, the pressure of the gas is plotted against the reciprocal of the volume of the gas at a constant temperature. the unit of the slope of the resulting curve is

A. Force
B. Force/m
C. Work
D. Force/m³
E. Energy/m³

Question 357:

• JAMB 1985

Water shows anomalous behaviour.

A. Below 0^oC
B. Between 0^{oC and 4[sup]o}C[/sup]
C. At exactly 4^oC
D. Between 4^{oC and 100[sup]oC}[/sup]
E. Above 100^oC

Question 358:

• JAMB 1985

Two thermo flasks of volume Vx and Vy are filled with liquid water at an initial temperature of 0^oC. After sometime the temperature were found to be 9x, 9y, respectively. Given that \(\frac{Vx}{Vy}\) = 2 and \(\frac{\theta x}{\theta y}\) = \(\frac{1}{2}\) the ratio of the heat flow into the flask is

A. \(\frac{1}{4}\)
B. \(\frac{1}{2}\)
C. 4
D. 1
E. 2

Question 359:

• JAMB 1985

A good calorimeter should be of

A. Low specific heat capacity and low heat conductivity
B. Low specific heat capacity and high heat conductivity
C. High specific heat capacity and low heat conductivity
D. High specific heat capacity and low heat conductivity
E. Dull surface and low heat conductivity

Question 360:

• JAMB 1985

Which of the following statements are NOT correct?

A. Boiling occurs when the saturated vapour pressure of the liquid involved equals the external pressure
B. Both the boiling point and the saturated vapour pressure of a given liquid depends on the external pressure
C. The saturated vapour presssure rises with increase in temperature
D. The saturated vapour pressure is independent of the volume available for the vapour
E. It is possible to boil water at a lower temperature than 100^oC at high altitude