b) The heat capacity of solid lead oxide [PbO (s)] is given by Cp.m JK mol 44.35 – 1.47 x 10-3 Calculate the change in molar enthalpy (AHm) (in unit J mol) of Pbo (s) if it is cooled from 500 K to 300 K at constant pressure (P). Quantity Cp,m denotes molar heat capacity at constant pressure.

2 mol of an ideal monoatomic gas moves from State 1 to State 2 P at constant pressure 1000 Pa and size V1=2 m3,V2 =3 m3. Calculated value W, Q, U, TI, T2

The reaction rate for the prepupal development of male Drosophila is temperature-dependent. Assuming that the reaction rate is exponential as in R x e-bdlCB!) , the activation energy for this development is 3.01 x 10-19 J. A Drosophila is originally at 20.10°C, and its temperature is increasing. If the rate of development has increased 3.50%, how much has its temperature increased? The value of the Boltzmann constant is 1.381 x 10-23 J/K (see Table B.1). °C

Current Attempt in Progress Compute (a) the number of moles and (b) the number of molecules in 2.2 cm of an ideal gas at a pressure of 88 Pa and a temperature 3 of 220 K. (a) Number Units (b) Number i Units >