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zysi [14]
3 years ago
11

Please answer this question only if you know the answer! 30 points and brainliest!

Chemistry
2 answers:
timama [110]3 years ago
5 0

The answer is A: 3,000 J

You legitimately just multiply the 100 watts to the thirty minutes to get the amount it Joules.  

gulaghasi [49]3 years ago
4 0

i am 50\ 50 on A and C

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Answer:

<h2>0.87 atm </h2>

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new pressure

P_2 =  \frac{P_1V_1}{V_2}  \\

From the question

2.47 L = 2470 mL

We have

P_2 =  \frac{765 \times 2.78}{2470}  =  \frac{2142}{2470}  \\  = 0.867206...

We have the final answer as

<h3>0.87 atm</h3>

Hope this helps you

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