Acylinder contains 250 g of helium at 200 k. the external pressure is constant at 1 atm. the temperature of the system is raised by 74 k. calculate the heat lost or gained by the system. calculate your answer to three significant figures and express you answer in j. heat capacity for helium = 20.8 j/(mol k) molecular weight for helium = 4 g/mol
Answers: 2
Chemistry, 22.06.2019 10:10
Stage in which a typical star has completely stopped fusion
Answers: 1
Chemistry, 22.06.2019 15:30
The identities of substances are the same before and after which type of change
Answers: 1
Chemistry, 23.06.2019 22:40
Carbons 1 and 4 of 1,3−cyclopentadiene are equivalent and give the same carbocation on protonation. likewise, carbons 2 and 3 are equivalent. write the structure of the carbocation formed by protonation of c−2 or c−3 to verify that it is not allylic and therefore not as stable as the one formed by protonation of c−1 or c−4.
Answers: 1
Chemistry, 23.06.2019 23:30
Iwhat is the mass of 1 mole of magnesium (mg)? express you answer to four significant figures
Answers: 2
Acylinder contains 250 g of helium at 200 k. the external pressure is constant at 1 atm. the tempera...
English, 04.02.2021 16:40
History, 04.02.2021 16:40
Mathematics, 04.02.2021 16:40
Biology, 04.02.2021 16:40
History, 04.02.2021 16:40
Biology, 04.02.2021 16:40
English, 04.02.2021 16:40
Mathematics, 04.02.2021 16:40
Mathematics, 04.02.2021 16:40
Mathematics, 04.02.2021 16:40