Ask a New Question
Search
Questions and answers by
frank fred
Questions (11)
(1) How many grams of copper, cu are there in 2.55 mol of cu? (2) Determine the percent composition of each of the following (a)
0 answers
681 views
define black body, emissivity, solar constant in relation to heat transfer.
0 answers
362 views
distinguish between Root mean square velocity, Most probable velocity, and Average velocity of gas molecules.
1 answer
530 views
the temperature of a body falls from 30C to 20C in 5 minutes. The air temperature is 13C. Find the temperature after a further 5
2 answers
903 views
the energy received by the earth from the sun is 1400w/m2. Assuming that the sun is a black body radiator and the ratio of the
0 answers
1,216 views
at what velocity must a conductor 75mm long cut a magnetic field of flux density 0.6T if an emf of 9V is to be induced in it?
3 answers
2,584 views
deremine (a) the work done and (b) the change in internal energy of 1.00 kg of water when it is all boiled to steam at 100c.
0 answers
625 views
deremine (a) the work done and (b) the change in internal energy of 1.00 kg of water when it is all boiled to steam at 100c.
1 answer
765 views
A volume of gas V at temperature T1 and pressure P is enclosed in a sphere. If is connected to another sphere of volume V/2 by a
0 answers
477 views
how many molecules of air are there in 1 litre flask at 293K, if the preessure in it is 0.3 atm.
1 answer
327 views
2 moles of an ideal gas at 20k changes from a pressure of 15 atm to 3 atm at constant temperature. Calculate the work done by
1 answer
988 views
Answers (1)
to solve for work done, cv=3/2R=3/2*8.317=12.4755, deltaU=cv*deltaT =12.4755*20=249.515, Q=W+deltaU, W=Q-deltaU, W=118J-249.515J=930.49J, the workdone is 930.49J, any question call me +2348065434920 for clearification
