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makvit [3.9K]
2 years ago
14

If you leave a cup of hot chocolate sitting on a table what eventually happens to the temperature? Does the temperature ever rea

ch a thermal equilibrium?
Chemistry
1 answer:
Ksivusya [100]2 years ago
8 0

Ah , a cup of hot chocolate is alot of chocolate. Im gonna drool ; )

Well , heat flows from an area of high temperature to an area of low temperature. Here , hot chocolate has the high temp , and the surrounding has a room temp. So , the heat from the hot chocolate will dissipate into the surroundings and create a thermal equilibrium. So youre right.

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How intermolecular forces are broken during evaporation?
Tanzania [10]

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5 0
2 years ago
Read 2 more answers
The specific heat of a certain type of cooking oil is 1.75 J/(g⋅°C). How much heat energy is needed to raise the temperature of
Mademuasel [1]

Answer:

\large \boxed{\textbf{609 kJ}}  

Explanation:

The formula for the heat absorbed is

q = mCΔT

Data:

m = 2.07 kg

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C = 1.75 J·°C⁻¹g⁻¹

Calculations:

1. Convert kilograms to grams

2.07 kg = 2070 g

2. Calculate ΔT

ΔT = T₂ - T₁ = 191 - 23  = 168 °C

3. Calculate q

q = \text{2070 g} \times 1.75 \text{ J$^{\circ}$C$^{-1}$g$^{-1}$} \times 168 \,^{\circ}\text{C} = \text{609 000 J} = \textbf{609 kJ}\\\text{The heat energy required is }\large \boxed{\textbf{609 kJ}}

4 0
3 years ago
Iron is a solid, grey metal. Oxygen is a colorless gas. When iron and oxygen chemically combine , rust is made. Rust has a reddi
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Because the formation of rust is a kind of chemistry reaction.
After chemistry reaction, compound with new properties is produced.
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6 0
3 years ago
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professor190 [17]

Answer:

Physical Change

Explanation:

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8 0
3 years ago
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SVETLANKA909090 [29]

Answer:

The answer to your question is Covalent

Explanation:

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7 0
3 years ago
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