Shyam took out a bottle of cold water from the fridge, wiped it dry and left it on the table. a few minutes later he found water droplets on the outside of the bottle. which process leads to the formation of the droplets?

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.