A 2.00 kg piece of lead at 40.0°C is placed in a very large quantity of water at 10.0°C, and thermal equilibrium is eventually reached. Calculate the entropy change of the lead that occurs during this process. The specific heat of lead is 130 J/(kg ? K)
A) -12.5 J/K
B) 86.0 J/K
C) -26.2 J/K
D) -86.0 J/K
E) -6.24 J/K
Answer: C
You might also like to view...
A locomotive is pulling 9 freight cars, each of which is loaded with the same weight. The mass of each loaded car is 37000kg and we can neglect friction on these 9 cars. If the train is accelerating forward at 0
81m/s2 on a level track, what is the tension in the coupling between the second and third cars? (The car nearest the locomotive is counted as the first car.)
Venus has an atmosphere that rotates within a period of only four days
a. True b. False Indicate whether the statement is true or false
A quantum computer built from 4 qubits
A) must be in only one of its 16 possible quantum states. B) must be in only one of its 4 possible quantum states. C) can be in all 8 of its 8 possible quantum states, simultaneously. D) can be in all 16 of its 16 possible quantum states, simultaneously. E) can be in all 4 of its 4 possible quantum states, simultaneously.
A propeller is spun up from rest to 1500 rpm under the influence of a constant torque in 15.0s. If the work done by the engine in giving the propeller its final angular velocity is 25kJ, what is the torque supplied by the engine?
A. 21Nm B. 11 Nm C. 42 Nm D. 21 Nm E. 130 Nm