The given question is incomplete. The complete question is as follows.
Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 338 kJ during a certain chemical reaction, which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that 187 kJ of work is done on the mixture during the reaction. Calculate the change in energy of the gas mixture during the reaction. Be sure your answer has the correct number of significant digits. Is the reaction exothermic or endothermic ?
Explanation:
The given data is as follows.
Change in enthalpy (
) = -338 kJ (as it is a decrease)
Work done = 187 kJ,
Change in energy (
) = ?
Now, according to the first law of thermodynamics the formula is as follows.
Hence, putting the given values into the above formula as follows.
Also, we know that W = 
so, 
= -151 kJ
Thus, we can conclude that the change in energy of the gas mixture during the reaction is -151 kJ.
The sampling rate that's given regarding the CPU will produce a rate of 256kps.
<h3>How to calculate the rate? </h3>
The following can be gotten from the question:
Sampling rate = 8KHx
Number of bits = 32
The data rate will be:
= 32 × 8kbps
= 256kps
In conclusion, the sampling rate that's given regarding the CPU will produce a rate of 256kps.
Learn more about rates on:
brainly.com/question/2375289
Answer:
Explanation:
We are going to use the accelerated motion formula 
on the vertical component taking the upwards direction as positive.
Since <em>at maximum height the speed will be 
</em>, the formula can be written as 
, which for our values is:
Written to three decimal places.
<span>A liquid be drawn into a pipette safely by squeezing a bulb attached to the wide end of the pipette.
</span>
<h3><u>Technology used by astronomers to look for life on other plants:</u></h3>
- Space-based Hubble and Spitzer telescopes and Green Bank telescopes are used.
- Many new satellites are launched to trace earth like planets. Even the telescopes are carried by spacecrafts.
- Astronomers are using Allen Telescope Array that comprises 42 radio antennas to get hold of signals over a wide range of radio frequencies that are tuned to listen to the regions nearer to the red dwarf star constellations.
- Scientists needed telescopes that are capable of detecting planets like Earth in our planet’s neighborhood and see if any biological signatures connected to any microbial or other intelligent life can be found.
- Radio signals are also being used to detect if the outside world has something to communicate so that they can be detected.
