Some hydrogen gas is enclosed within a chamber being held at 200∘C whose volume is 0.0250 m3. Initially, the pressure in the gas is 1.50×106Pa (14.8 atm). The chamber is removed from the heat source and allowed to cool until the pressure in the gas falls to 0.950×106Pa. At what temperature T2 does this occur? Enter your answer in degrees Celsius.

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.

Wich of yhe following is true a mass drpendent on gravity and weight is dependent on gravity

Which of the following are found in plant cells buh not animal cells?