**Points :**Heat and Thermodynamics - mcqs, Heat and Thermodynamics fill in the blanks, mechanics objective type questions 1. Temperature of a block of iron is 140°F. Its temperature on the celsius scale will be

(a) 20°

(b) 40°

(c)

**60°**

(d) 80°

2. In the equation PV=RT, V stands for the volume of

(a) 1 litre of gas

(b)

**one gram of gas**

(c) any amount of gas

(d) one gm molecules of a gas

3. Ttemperature at which centigrade and Farenheit scales give the similar reading is

(a) 128°C

(b) 32° F

(c)

**-40°C**

(d) -108°C