10. An ideal gas is contained within a volume of 2 cu ft, when the pressure is 137 atmosphere and the temperature is 27°C. What volume this gas would occupy if it were allowed to expand to atmospheric pressure at a temperature of 50°C? a. 365 cu ft b. 295 cu ft c. 265 cu ft d. 185 cu ft

Q.2 The following data relates to the office air conditioning plant having maximum seating capacity of 25 occupants : Recirculated air Room Outside air 4) to = 34°C tm = 28°C ta2 = 24°C $2 = 50% Mixing Coil Outside design conditions: 34°C DBT, 28°C WBT Inside design conditions: 24°C DBT, 50% RH Solar heat gain= 9120 W Latent heat gain per occupant= 105w Sensible heat gain per occupant=90w Lightening load= 2300 W Sensible heat load from other sources= 11630 W Infiltration load= 14 m³/min Assuming 40% fresh air and 60% of recirculated air passing through the evaporator coil and the by-pass factor of 0.15. Draw the process on psychrometric chart and find the dew point temperature of the coil and capacity of the plant.

While camping, you observe a lightning bolt, and 4.0 s later you hear the associatedthunder. How far away is the strike?