Change in internal energy from the first law (delta U = q + W)

1. A.
   $Q = W - \Delta U$
2. B.
   $Q = \Delta U - W$
3. C.
   $Q = \Delta U + W$
4. D.
   $Q = -W$

Tap an option to check your answer.

1. A.
   $-225$ J
2. B.
   $-985$ J
3. C.
   $+225$ J
4. D.
   $+985$ J

Tap an option to check your answer.

1. A.
   200 J
2. B.
   300 J
3. C.
   400 J
4. D.
   100 J

Tap an option to check your answer.

1. A.
   $+450\,\text{J}$
2. B.
   $-450\,\text{J}$
3. C.
   $+300\,\text{J}$
4. D.
   $-150\,\text{J}$

Tap an option to check your answer.

1. A.
   100 J
2. B.
   $-200$ J
3. C.
   200 J
4. D.
   $-300$ J

Tap an option to check your answer.

1. A.
   10600 J
2. B.
   9400 J
3. C.
   $-10600$ J
4. D.
   $-9400$ J

Tap an option to check your answer.

1. A.
   $x - y\text{ kJ}$
2. B.
   $y - x\text{ kJ}$
3. C.
   $x + y\text{ kJ}$
4. D.
   $xy\text{ kJ}$

Tap an option to check your answer.

1. A.
   $-15\text{ kJ}$
2. B.
   $-17\text{ kJ}$
3. C.
   $13\text{ kJ}$
4. D.
   $19\text{ kJ}$

Tap an option to check your answer.

1. A.
   $-48$ J
2. B.
   $-40$ J
3. C.
   $32$ J
4. D.
   $24$ J

Tap an option to check your answer.

1. A.
   $-7340$ J
2. B.
   $-5400$ J
3. C.
   $-8660$ J
4. D.
   $-1212$ J

Tap an option to check your answer.

1. A.
   800 J
2. B.
   $-750$ J
3. C.
   100 J
4. D.
   $-150$ J

Tap an option to check your answer.

1. A.
   23 J
2. B.
   32 J
3. C.
   40 J
4. D.
   48 J

Tap an option to check your answer.

1. A.
   210 J
2. B.
   90 J
3. C.
   450 J
4. D.
   -300 J

Tap an option to check your answer.

1. A.
   310 J
2. B.
   $-90\ \text{J}$
3. C.
   $-210\ \text{J}$
4. D.
   190 J

Tap an option to check your answer.

1. A.
   30 kJ
2. B.
   10 kJ
3. C.
   -15 kJ
4. D.
   -20 kJ

Tap an option to check your answer.

1. A.
   -10 kJ
2. B.
   $\ - 35\text{ }kJ$
3. C.
   -15 kJ
4. D.
   $\ - 25\text{ }kJ$

Tap an option to check your answer.

1. A.
   20 kJ
2. B.
   40 kJ
3. C.
   10 kJ
4. D.
   30 kJ

Tap an option to check your answer.

1. A.
   20 J
2. B.
   32 J
3. C.
   48 J
4. D.
   68 J

Tap an option to check your answer.

1. A.
   $125$ J
2. B.
   $175$ J
3. C.
   $-125$ J
4. D.
   $-175$ J

Tap an option to check your answer.

1. A.
   $\Delta H = 4$ kJ and $\Delta U = 16$ kJ
2. B.
   $\Delta H = -4$ kJ and $\Delta U = 8$ kJ
3. C.
   $\Delta H = -4$ kJ and $\Delta U = -16$ kJ
4. D.
   $\Delta H = 4$ kJ and $\Delta U = -16$ kJ

Tap an option to check your answer.

1. A.
   $40$ J
2. B.
   $60$ J
3. C.
   $30$ J
4. D.
   $50$ J

Tap an option to check your answer.

1. A.
   $180$ J
2. B.
   $240$ J
3. C.
   $120$ J
4. D.
   $60$ J

Tap an option to check your answer.

1. A.
   $1200$ J.
2. B.
   $-1200$ J.
3. C.
   $2400$ J.
4. D.
   $-2400$ J.

Tap an option to check your answer.

1. A.
   $-20$ kJ
2. B.
   $20$ kJ
3. C.
   $-60$ kJ
4. D.
   $40$ kJ

Tap an option to check your answer.

1. A.
   $+2$ kJ
2. B.
   $-2$ kJ
3. C.
   $+4$ kJ
4. D.
   $-4$ kJ

Tap an option to check your answer.