# Mechanical Engineering - Thermodynamics

Exercise : Thermodynamics - Section 3
46.
According to kinetic theory of gases, the kinetic energy of translation of a molecule is proportional to
T
T
1/T
1/T
Explanation:
No answer description is available. Let's discuss.

47.
The amount of heat given out by the complete combustion of 1 kg of fuel is known as calorific value of solid or liquid fuel.
True
False
Explanation:
No answer description is available. Let's discuss.

48.
The conditions of temperature and pressure at 0°C (273K) and 760 mm of Hg pressure are termed as __________ temperature and pressure.
normal
standard
Explanation:

Standard temperature and pressure (STP) and Normal temperature and pressure (NTP) are two sets of reference conditions that are commonly used in science and engineering.

The main difference between STP and NTP is the temperature and pressure values that they represent.

STP is defined as a temperature of 0 degrees Celsius (273.15 K) and a pressure of 1 atmosphere (101.325 kPa or 760 mmHg). STP is often used as a reference for measuring gas volumes and is commonly used in fields such as chemistry and physics.

NTP, on the other hand, is defined as a temperature of 20 degrees Celsius (293.15 K) and a pressure of 1 atmosphere (101.325 kPa or 760 mmHg). NTP is often used as a reference for measuring gas flow rates and is commonly used in fields such as engineering and environmental science.

It is important to note that STP and NTP are not interchangeable and their specific values should be used according to the context and application of the measurement being made.

49.
The value of cp/cv for air is
1
1.4
1.8
23