3 years ago

In order to use polysaccharides as an energy source, one must

Chemistry

1 answer:

SpyIntel [72]3 years ago

8 0

Answer:d.break them down to monosaccharides

Explanation:

Polysaccharides are polymers made of monosaccharide monomers. The polysaccharides do not release energy except the monosacharides are broken down to monosaccharides by stepwise hydrolysis. To obtain energy from polysaccharides, the constituent monosacharides are obtained and these are now involved in the biological cycles that liberate energy.

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How much energy is lost to condense 300. grams of steam at 100.C?

True [87]

Energy lost to condense = 803.4 kJ

<h3>Further explanation</h3>

Condensation of steam through 2 stages:

1. phase change(steam to water)

2. cool down(100 to 0 C)

1. phase change(condensation)

Lv==latent heat of vaporization for water=2260 J/g

$\tt Q=300\times 2260=678000~J$