2 years ago

What casues leaves to change color in autam

Physics

2 answers:

Lynna [10]2 years ago

4 0

Answer:

well the plant cant make much food for it self and with out the suger it makes the leaves turn orange and brown

Explanation:

Furkat [3]2 years ago

3 0

Answer: Chlorophyll Breaking down.

Explanation: When it starts to get cooler the chlorophyll breaks down causing the pretty green color to change to brown gold and orange.

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(d) If η = 40% and TH = 427°C, what is TC, in °C?

Brrunno [24]

Answer:

$T_C=256.2^{\circ}C$

Explanation:

Given that,

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Temperature of hot source, $T_H=427^{\circ}C$

We need to find the temperature of cold sink i.e. $T_C$ . The efficiency of heat engine is given by :

$\eta=1-\dfrac{T_C}{T_H}$

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$T_C=(1-0.4)\times 427$

$T_C=256.2^{\circ}C$

So, the temperature of the cold sink is 256.2°C. Hence, this is the required solution.

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