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3 years ago

If gas in a sealed container has a pressure of 50 kPa at 300 K, what will the pressure be if the temperature rises to 360 K?

1 answer:

6 0

The answer is 60 kpa, also did you try look it up because that is what i did but i did not copy and paste it.

hope this helped have a good day

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An unknown metal has a mass of 86.8 g. When 5040 J of heat are added to the sample, the sample temperature changes by 64.7 ∘ C .

grandymaker [24]

Answer: The specific heat of the unknown metal is $0.897J/g^0C$

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

$Q=m\times c\times \Delta T$

Q = Heat absorbed= $5040$ Joules

m= mass of substance = 86.8 g

c = specific heat capacity = ?

Initial temperature of the water = $T_i$

Final temperature of the water = $T_f$

Change in temperature , $\Delta T=T_f-T_i=(64.7)^0C$

Putting in the values, we get:

$5040=86.8\times c\times 64.7^0C$

$c=0.897J/g^0C$

The specific heat of the unknown metal is $0.897J/g^0C$

4 0

3 years ago

The synthesis of nitrogen trihydride from nitrogen gas and hydrogen gas is shown by which balanced chemical equation?

Bumek [7]

The correct answer is: [B]:
___________________________________________________________
" N₂ (g) + 3 H₂ (g) → 2 NH₃ <span>(g) " .
___________________________________________________________
Note of interest:
___________________________________________________________
This particular reaction is known as the "</span>Haber process" .
___________________________________________________________

7 0

3 years ago

Read 2 more answers

. If this same atom with 22 protons and 19 electrons were to gain 3 electrons, the net charge on the atom would be

mina [271]

Answer:

neutral

Explanation:

19+3=22

22 protons & 22 neutrons --> neutral net charge

3 0

2 years ago

Which equation represents the reaction of acetic (ethanoic) acid with water? A. CH3COO- + H2O CH3COOH + OH- B. CH3COOH + H2O CH3

Leno4ka [110]

"CH3COOH + H2O CH3COO- + H3O+" is the equation among the choices given in the question <span>represents the reaction of acetic (ethanoic) acid with water. The correct option among all the options that are given in the question is the second option or option "B". I hope that the answer has helped you.</span>

8 0

3 years ago

When one form of energy is transformed into another no energy is destroyed in the process?

katrin2010 [14]

Yes that is true, when energy is transformed energy is not destroyed.

8 0

2 years ago