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yan [13]
2 years ago
14

Compare the temperature change for cold sand and cold water when the same amount of hot water was added. what do you discover?

Chemistry
1 answer:
balandron [24]2 years ago
6 0

When the same amount of heat is added to cold sand and cold water, the temperature change of sand will be higher because of its lower specific heat capacity.

<h3>What is specific heat capacity?</h3>

Specific heat capacity is the quantity of heat required to raise a unit mass of a substance by 1 kelvin.

<h3>Specific heat capacity of water and sand</h3>

Water, c = 4,200 J/kg⁰C

Sand, c = 830 J/kg⁰C

Q = mcΔθ

where;

  • Δθ is temperature change
  • Q is quantity of heat added

Δθ = Q/mc

Thus, for an equal mass of water and sand, when the same amount of heat is added to cold sand and cold water, the temperature change of sand will be higher because of its lower specific heat capacity.

Learn more about specific heat capacity here: brainly.com/question/21406849

#SPJ1

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4 0
2 years ago
You are burning wood to heat water for your industrial process. What is the mass of wood required to raise the temperature of 10
natta225 [31]

Answer:

18,8kg of wood

Explanation:

The energy you need to to raise the temperature of 1000 kg of water from 25.0 to 100.0 °C is:

q = C×m×ΔT

Where: q is heat, C is specific heat of water (4,184J/g°C), m is mass in grams (1000x10³g), and ΔT is 100,0°C - 25,0°C = 75,0°C

Replacing:

q = 4,184J/g°C×1000x10³g×75,0°C

<u><em>q = 3,14x10⁸ J of heat are required</em></u>

<u><em /></u>

Now, if the heating value of dry wood is 16,72 MJ/kg = 16,72x10⁶ J/kg, mass of wood required is:

3,14x10⁸J × (1kg / 16,72x10⁶ J) = <em>18,8 kg of wood are required</em>

<em></em>

I hope it helps!

5 0
3 years ago
The longer the bond, the smaller the bond enthalpy. the longer the bond, the smaller the bond enthalpy. false true
Temka [501]

True

As the shorter the bond, the stronger it is hence more energy will be required to overcome this bond

5 0
2 years ago
C) A battery of emf, E drives a current of 0.25A when connected to a 5.5ohms resistor. When
boyakko [2]

Answer:

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Why is the air in a jet aircraft flying at high altitudes pressurized? *
saw5 [17]

Answer:

Aircraft cabins are therefore pressurized to maintained a similar pressure as that experienced at sea level to ensure normal breathing of passengers.

Explanation:

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-As such, oxygen becomes limited at higher altitudes and makes it difficult or almost impossible to breath  a condition called hypoxia.

-Aircraft cabins are therefore pressurized to maintained a similar pressure as that experienced at sea level to ensure normal breathing of passengers.

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3 years ago
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