Ethyl chloride (C2H5Cl) boils at 12C. When liquid C2H5Cl under pressure is spray

Question

Ethyl chloride (C2H5Cl) boils at 12C. When liquid C2H5Cl under pressure is sprayed on a room-temperature (25C) surface in air, the surface is cooled considerably. Assume that the heat lost by the surface is gained by ethyl chloride. What enthalpies must you consider if you were to calculate the final temperature of the surface?

Check all that apply.

a) The specific heat of C2H5Cl(g)

b) The specific heat of the solid surface

c) The specific heat of C2H5Cl(l)

d) The enthalpy of vaporization of C2H5Cl(l)

Explanation / Answer

The amount of heat absorbed by ethyl chloride = The amount of heat is given by surrounding

enthalp change for liquid to gas + (mass)(specific heat of ethyl chloride)(delat T)

                                                  = (mass)(specific heat of ethyl chloride)(delat T)

Hence option c) and d) required

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.