Mercury, the planet of communication and intellect, when placed in the 7th house for Capricorn ascendant results in some interesting astrological predictions. Since Mercury is in an enemy sign state, it creates some challenges with communication and relationships. In this placement, Mercury also becomes the lord of the 6th and 9th houses, which means that these houses will be influenced by Mercury's energy.
The 6th house represents obstacles, enemies, and diseases while the 9th house is associated with spirituality, higher knowledge, and luck. With Mercury as their lord, those born under Capricorn ascendant may face challenges related to health or conflicts with enemies during this period. However, they may also have a deep interest in spiritual matters and seek out knowledge on these topics.
As the natural karaka of the 4th and 10th houses related to home life/career respectively, Mercury's placement in the 7th house can affect both areas of life. Those with this placement may find themselves working hard to maintain harmony within their home life while also dedicating time towards career success. This could result in feeling torn between responsibilities at work and home.
With its aspect on the first house of self-identity/personality traits, Mercury can give these individuals charming personalities with great communication skills. They are likely to be very articulate but must be careful not to compromise personal opinions while trying to please others.
For those who are single or seeking marriage prospects, this combination suggests that if they do get married there will be significant age difference between themself and partner as well as potential issues regarding partner's communication abilities.
Mercury's placement can create challenges around expressing emotions clearly without appearing superficial or detached from inner feelings since it sits along with malefics Ketu/Rahu creating obstruction/challenges due to forced change/transformation/external influences affecting personality traits.
However being an expert communicator so when they do listen, engage with audience or put practical plans into action, they have the ability to inspire others as well. Therefore, it becomes critical for individuals born under this placement to find a balance between their communication abilities and emotional expression.
To conclude, Mercury placed in the 7th house for Capricorn ascendant can give rise to challenges related to communication and relationships but brings opportunities to incorporate spiritual knowledge into everyday life. With its influence on both home life and career form a harmonious combination through balance and hard work. These individuals possess great sense of articulation & charm making excellent communicators when personality traits are clear while facing age difference/communication differences in marital life.