All categories

4 years ago

The bond enthalpy value for a carbon to hydrogen bond is 413 kJ. What does this mean?

Physics

2 answers:

Katena32 [7]4 years ago

7 0

It is a I think I’m not sure

AlladinOne [14]4 years ago

6 0

Breaking bond requires energy. The bond between the carbon and hydrogen is broken when the energy is absorbed. The enthalpy is defined to be the energy taken to break the one mole of the stated carbon and hydrogen bond. Thus a should be the correct answer

You might be interested in

A car travels with a constant velocity of 45km/hr for 20 sec. What distance does it cover

Flauer [41]

Explanation:

This is simple.

Convert the speed of 45km/h to metres per second (m/s):

45 * 1000m = 45000m per hour.

1 hour = 60 seconds * 60 minutes = 3600 seconds.

45000m/h / 3600 = 12.5m/s

(A quicker way is just to divide by 3.6)

So in 20 seconds it would cover:

12.5m/s * 20s = 250m.

A car travelling at 45km/h would travel 250 metres in 20s.

6 0

2 years ago

Read 2 more answers

HELP ASAP!! i’ll mark you the brainliest!!

Triss [41]

Answer:

yes

Explanation:

6 0

3 years ago

At one instant of time, a car and a truck are traveling side by side in adjacent lanes of a highway. The car has a greater veloc

Helen [10]

Answer:

Explanation:

Acceleration is change in velocityΔv in respect to timeΔt

so if the velocity of the car is greater than the truck it does not mean that the car acceleration is greater than the truck.

Sometimes with constant velocity it means no accelaration ,but the truck may have accelaration

so, higher velocity of the car does not mean higher acceleration

5 0

3 years ago

The power of a red laser (λ = 630 nm) is 3.25 watts (abbreviated w, where 1 w = 1 j/s). how many photons per second does the las

lisabon 2012 [21]

The energy delivered by the laser in 1 second is $E_t=Pt = (3.25 W)(1.0 s)=3.25 J$
In order to find how many photons correspond to this energy, we must calculate the energy of a single photon.
Calling h the Planck constant, c the speed of light and $\lambda=630 nm=630 \cdot 10^{-9}m$ the wavelength of the light, the energy of a single photon is given by
$E=h \frac{c}{\lambda}=(6.6 \cdot 10^{-34} Js) \frac{3 \cdot 10^8 m/s}{630 \cdot 10^{-9}m}= 3.1 \cdot 10^{-19} J$

So, the number of photons emitted by the laser in 1 second is equal to the total energy delivered by the laser divided by the energy of a single photon:
$N= \frac{E_t}{E}= \frac{3.25 J}{3.1 \cdot 10^{-19} J} =1.0 \cdot 10^{19}$ photons

5 0

3 years ago

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arr

zubka84 [21]

Answer:

$894.12\ \text{N}$