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andrey2020 [161]
3 years ago
8

If 32 L of hydrogen react with excess oxygen at STP to form water, how much energy will be released?

Chemistry
1 answer:
Fudgin [204]3 years ago
4 0

Answer:

??????????????????

Explanation:

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zepelin [54]

Answer:

B?

Explanation:

In the example, the amount of hydrogen is 202,650 x 0.025 / 293.15 x 8.314472 = 2.078 moles. Use the mass of the hydrogen gas to calculate the gas moles directly; divide the hydrogen weight by its molar mass of 2 g/mole. For example, 250 grams (g) of the hydrogen gas corresponds to 250 g / 2 g/mole = 125 moles.

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3 years ago
A bird sits on her eggs to keep them warm
Troyanec [42]

Answer:

This would be Conduction

Explanation:

Conduction is the transfer of heat between two surfaces in contact with each other like the bird and the eggs.

5 0
3 years ago
What happens when the thermal energy of a substance increases?
MariettaO [177]

Answer:

Explanation:

Both motion of particles and temperature increase

8 0
3 years ago
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During free fall which object would have a greater acceleration, an object with a mass of 240 kg or an object with a mass of 10
inna [77]

Answer:

Leroy Jeakins

Explanation:

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5 0
3 years ago
How much heat must your body transfer to 500.0g of water to heat it from 25.0°C to body temperature, 37.0°C?
shtirl [24]

Answer : The heat your body transfer must be, 25.1 kJ

Explanation :

Formula used :

Q=m\times c\times \Delta T

or,

Q=m\times c\times (T_2-T_1)

where,

Q = heat = ?

m = mass of water = 500.0 g

c = specific heat of water = 4.18J/g^oC

T_1 = initial temperature  = 25.0^oC

T_2 = final temperature  = 37.0^oC

Now put all the given value in the above formula, we get:

Q=500.0g\times 4.18J/g^oC\times (37.0-25.0)K

Q=25080J=25.1kJ

Therefore, the heat your body transfer must be, 25.1 kJ

3 0
3 years ago
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