Page 625 - SUBSEC October 2017_Neat

- 12 -
31. One fixed point on the thermodynamic Item 34 refers to the following diagram.
temperature scale is identified by the

(A) ice point of water
(B) steam point of water
(C) triple point of water
(D) boiling point of water

32. Two bodies when in thermal equilibrium
will have the same

A pressure A brick wall 10 m long by 4 m high
B temperature is insulated with a material of thermal
C kinetic energy conductivity 0.70 Wm K . If the
-1
-1
D potential energy insulating material is 210 mm thick, the
interface between the wall and material is
at 95°C and the rate of heat flow into the
33. The temperature of 50 g of liquid was raised interface is 4 kW, what is the temperature
by 60 K when it was used to cool a steel of the other end of the insulation?
ball of mass 100 g from 1500 C to 700 C.
o
If the specific heat capacity of steel is 450 (A) 125 C
o
J/kg K, what is the specific heat capacity (B) 98 C
of the liquid? (C) 94.7 C
o
(D) 65 C
o
(A) 1200 J/kg K
(B) 675 J/kg K
(C) 300 J/kg K 35. What is the SI base unit for specific heat
(D) 120 J/kg K capacity?

A kg m K -1
2
2
B m s K
2
-1
C m kg K 1
-1
D m s K -1
-2
2
36. What is the average kinetic energy of
helium atoms at 270 C?

(A) 2.8 x 10 J
-21
(B) 2.5 x 10 J
-22
(C) 6.2 x 10 J
-21
(D) 5.6 x 10 J
-21

GO ON TO THE NEXT PAGE
02138010/CAPE/SPEC/2017