Physics

Physics, 18.07.2019 09:30, cluchmasters5634

Calculate the value of δe in joules for a system that loses 115 j of heat and has 150 j of work performed on it by the surroundings.

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Chemistry, 05.07.2019 00:30, xxaurorabluexx

Calculate the value of ? e in joules for a system that loses 115 j of heat and has 150 j of work performed on it by the surroundings.

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Physics, 29.08.2019 16:30, deasiamonay14

When a gas is heated, it absorbs 174 joules of heat from the surroundings. at the same time, the gas expands, doing pressure-volume work (p · v work) on the surroundings that is equal to 312 joules. (a) determine whether the amounts of heat (q) and work (w) exchanged should have positive or negative signs. heat (q)

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Chemistry, 04.09.2019 04:10, Maaarii

Suppose a system receives a "deposit" of work from the surroundings and loses a "withdrawal" of heat to the surroundings. can we determine the sign of δe for this process? a. no, because we are not given specific values for w and q. b. no, because it an open system. c. yes, because we know the signs of w and q. d. no, because we do not know the temperature of the system

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Chemistry, 10.10.2019 04:10, barclaybarnes07

One mole of n gas is contained at 273 k and a pressure of latm. the addition of 3000 joules heat to the gas at constant pressure causes 832 joules of work to be done during expansion, calculate: 1750 (i) the final state of the gas (ie, v and t) (ii) the values for du and dh for the change of state, (iii) the values of c, and cp for n2 (iv) draw a schematic diagram to represent the system, the work done on the surroundings by the system and the work done by the system on the surroundings. r = 0.082057 l.atm/ mole.k = 8.314 j/mole.k = 8.314 kj/kmole.k

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