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3 years ago

PLEASE HELP PRONTO PLEASE

Chemistry

1 answer:

Ivan3 years ago

8 0

Answer:

The correct answer is - root hairs.

Explanation:

Root hairs or absorbent hair are the very small tubular outgrowth present in the epidermis of the roots of the plant that helps plants in absorbing the water from the soil pores into the plants. Water is an essential reactant in the photosynthesis process.

By their elongation increases the surface of exchange between plants and soil for better absorption. The major function of the root hairs to absorb the water and the nutrients from the soil to the plant.

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Firdavs [7]

Answer:

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(b) -0.671 kJ/K

Explanation:

The Refrigerant-134a flows into the evaporator as a saturated liquid-vapor mixture and flows out as a saturated vapor at a saturation pressure of 160 kPa and temperature of -15.64°C (estimated from the Saturated Refrigerant-134a Temperature Table).

(a) The entropy change of the refrigerant (ΔS $_{R-134a}$ ) = Q/T $_{1}$

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(b) The entropy change (ΔS $_{c}$ ) of the cooled space (ΔS $_{c}$ ) = -Q/T $_{2}$

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ΔS $_{c}$ = Q/T $_{2}$ = -180/268.15 = -0.671 kJ/K

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3 years ago

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