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vlabodo [156]
3 years ago
13

The organ system that moves air into, around, and out the body

Chemistry
1 answer:
Umnica [9.8K]3 years ago
6 0
Its a Respiratory System, hope that helped your question :)
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What indicates that two objects are in thermal equilibrium?
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What determines the transition between different states of matter?
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3 years ago
1. (8pt) Using dimensional analysis convert 600.0 calories into kilojoules
Ivanshal [37]

Answer:

1. 2.510kJ  

2. Q = 1.5 kJ

Explanation:

Hello there!

In this case, according to the given information for this calorimetry problem, we can proceed as follows:

1. Here, we consider the following equivalence statement for converting from calories to joules and from joules to kilojoules:

1cal=4.184J\\\\1kJ=1000J

Then, we perform the conversion as follows:

600.0cal*\frac{4.184J}{1cal}*\frac{1kJ}{1000J}=2.510kJ

2. Here, we use the general heat equation:

Q=mC(T_2-T_1)

And we plug in the given mass, specific heat and initial and final temperature to obtain:

Q=236g*0.24\frac{J}{g\°C} (34.9\°C-8.5\°C)\\\\Q=1495.3J*\frac{1kJ}{1000J} \\\\Q=1.5kJ

Regards!

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3 years ago
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Alex17521 [72]

Answer:

Wereare they answer choices

Explanation:

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3 years ago
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